-2-4(3a-3)=-8a+20

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Solution for -2-4(3a-3)=-8a+20 equation:


Simplifying
-2 + -4(3a + -3) = -8a + 20

Reorder the terms:
-2 + -4(-3 + 3a) = -8a + 20
-2 + (-3 * -4 + 3a * -4) = -8a + 20
-2 + (12 + -12a) = -8a + 20

Combine like terms: -2 + 12 = 10
10 + -12a = -8a + 20

Reorder the terms:
10 + -12a = 20 + -8a

Solving
10 + -12a = 20 + -8a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '8a' to each side of the equation.
10 + -12a + 8a = 20 + -8a + 8a

Combine like terms: -12a + 8a = -4a
10 + -4a = 20 + -8a + 8a

Combine like terms: -8a + 8a = 0
10 + -4a = 20 + 0
10 + -4a = 20

Add '-10' to each side of the equation.
10 + -10 + -4a = 20 + -10

Combine like terms: 10 + -10 = 0
0 + -4a = 20 + -10
-4a = 20 + -10

Combine like terms: 20 + -10 = 10
-4a = 10

Divide each side by '-4'.
a = -2.5

Simplifying
a = -2.5

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